GB9102621D0 - Motor-driven zoom lens barrel - Google Patents
Motor-driven zoom lens barrelInfo
- Publication number
- GB9102621D0 GB9102621D0 GB919102621A GB9102621A GB9102621D0 GB 9102621 D0 GB9102621 D0 GB 9102621D0 GB 919102621 A GB919102621 A GB 919102621A GB 9102621 A GB9102621 A GB 9102621A GB 9102621 D0 GB9102621 D0 GB 9102621D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- motor
- lens barrel
- zoom lens
- driven zoom
- driven
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2890390A JP2787501B2 (en) | 1990-02-08 | 1990-02-08 | Electric zoom lens barrel |
JP2890290A JP2787500B2 (en) | 1990-02-08 | 1990-02-08 | Electric zoom lens barrel |
Publications (2)
Publication Number | Publication Date |
---|---|
GB9102621D0 true GB9102621D0 (en) | 1991-03-27 |
GB2240854A GB2240854A (en) | 1991-08-14 |
Family
ID=26367045
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9102621A Withdrawn GB2240854A (en) | 1990-02-08 | 1991-02-07 | Motor-driven zoom lens barrel |
Country Status (4)
Country | Link |
---|---|
US (1) | US5148199A (en) |
DE (1) | DE4103871A1 (en) |
FR (1) | FR2657968A1 (en) |
GB (1) | GB2240854A (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2942296B2 (en) * | 1990-02-15 | 1999-08-30 | 旭光学工業株式会社 | Electric zoom device |
JP3169398B2 (en) * | 1991-05-21 | 2001-05-21 | 旭光学工業株式会社 | Operation mechanism of lens barrel |
US5697000A (en) * | 1991-05-28 | 1997-12-09 | Minolta Camera Kabushiki Kaisha | Camera having a power zoom function |
US5305038A (en) * | 1991-07-30 | 1994-04-19 | Asahi Kogaku Kogyo Kabushiki Kaisha | Zoom lens camera |
JP3313768B2 (en) * | 1992-07-23 | 2002-08-12 | キヤノン株式会社 | Lens barrel |
US6002886A (en) * | 1992-10-01 | 1999-12-14 | Canon Kabushiki Kaisha | Lens barrel |
GB2271646B (en) * | 1992-10-19 | 1996-12-04 | Asahi Optical Co Ltd | An optical camera and a method of conducting a focusing operation therein |
US6879445B2 (en) * | 2002-10-25 | 2005-04-12 | Pentax Corporation | Power/manual lens barrel having a manual operating ring |
JP2005223766A (en) * | 2004-02-06 | 2005-08-18 | Canon Inc | Imaging apparatus and its control method |
JP5597955B2 (en) * | 2008-10-24 | 2014-10-01 | リコーイメージング株式会社 | Variable lens barrel |
JP5434310B2 (en) * | 2009-07-02 | 2014-03-05 | リコーイメージング株式会社 | Manual focus mechanism of imaging apparatus and imaging apparatus |
JP5589082B2 (en) | 2010-09-17 | 2014-09-10 | パナソニック株式会社 | Lens barrel |
JP5832087B2 (en) * | 2010-12-10 | 2015-12-16 | キヤノン株式会社 | Imaging device |
JP6071544B2 (en) * | 2012-12-27 | 2017-02-01 | キヤノン株式会社 | Imaging device |
JP6537226B2 (en) * | 2014-06-09 | 2019-07-03 | キヤノン株式会社 | Lens device and optical apparatus |
JP2016012027A (en) * | 2014-06-27 | 2016-01-21 | キヤノン株式会社 | Imaging apparatus |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7313667U (en) * | 1973-07-05 | Agfa Gevaert Ag | Cine film camera with a varifocal lens and an operating handle for this | |
DE1891749U (en) * | 1961-10-12 | 1964-04-23 | Leitz Ernst Gmbh | DEVICE FOR CONTINUOUS AND QUICK FOCAL LENGTH ADJUSTMENT ON PANRATIC LENSES. |
GB1140566A (en) * | 1965-09-03 | 1969-01-22 | Rank Organisation Ltd | Improvements in or relating to control systems |
US4002405A (en) * | 1975-04-03 | 1977-01-11 | Curt Stahl | Variable speed control for zooming |
US4534624A (en) * | 1981-07-14 | 1985-08-13 | Canon Kabushiki Kaisha | Construction of lens barrel operated by electromagnetic induction |
JPS5877306U (en) * | 1981-11-19 | 1983-05-25 | 旭光学工業株式会社 | zooming device |
US4553817A (en) * | 1982-04-08 | 1985-11-19 | Makoto Ando | Automatic and manual focusing exchangeable lens assembly |
US4596449A (en) * | 1982-12-14 | 1986-06-24 | West Electric Company Ltd. | Zoom lens apparatus |
JPS59216111A (en) * | 1983-05-24 | 1984-12-06 | Asahi Optical Co Ltd | Focus adjusting device of camera |
US4750821A (en) * | 1984-08-24 | 1988-06-14 | Canon Kabushiki Kaisha | Zoom lens assembly |
JPS6311613A (en) * | 1986-06-30 | 1988-01-19 | Tooa Steel Kk | Construction of bottom blowing tuyere for electric furnace |
JPS62272215A (en) * | 1986-05-21 | 1987-11-26 | Canon Inc | Operating mechanism for lens-barrel of photographing lens |
US4851869A (en) * | 1987-01-19 | 1989-07-25 | Olympus Optical Co., Ltd. | Lens driving apparatus |
JP2744239B2 (en) * | 1988-01-14 | 1998-04-28 | オリンパス光学工業株式会社 | Lens drive |
US4816859A (en) * | 1988-03-28 | 1989-03-28 | Chinon Kabushiki Kaisha | Zoom lens focusing apparatus |
-
1991
- 1991-02-06 US US07/651,555 patent/US5148199A/en not_active Expired - Fee Related
- 1991-02-07 GB GB9102621A patent/GB2240854A/en not_active Withdrawn
- 1991-02-08 DE DE4103871A patent/DE4103871A1/en not_active Withdrawn
- 1991-02-08 FR FR9101458A patent/FR2657968A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
FR2657968A1 (en) | 1991-08-09 |
US5148199A (en) | 1992-09-15 |
GB2240854A (en) | 1991-08-14 |
DE4103871A1 (en) | 1991-08-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |